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The SPL Boxes SB152-210BL is a custom-fit, downward-firing dual 10 in subwoofer enclosure designed specifically for 1999–2006 Chevy Silverado and GMC Sierra Extended Cab trucks.
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Bring out the absolute best in your bass with the SPL Boxes SB110V Single 10 in Vented Subwoofer Enclosure. Engineered for audio enthusiasts who demand high-performance low-end punch without the hassle of a custom build, this heavy-duty enclosure delivers optimal airflow, extreme durability, and maximum acoustic output.
SB114-210VBL
Engineered specifically for a custom fit behind the seat of 2004–2006 Chevy Silverado and GMC Sierra Non-HD Crew Cab trucks, this high-performance enclosure packs punchy, deep low-end audio without sacrificing your cabin space.
SB122-212VBL
The SPL Boxes SB122-212V-BL is a universal, heavy-duty downfiring 12 in subwoofer vented enclosure engineered specifically to fit behind the 3rd-row seats of full-size SUVs.
SB124-212BL
Transform your truck's audio with the SPL Boxes SB124-212BL Custom-Fit Dual 12 in Subwoofer Enclosure. Explicitly engineered for 2007–2026 Chevy Silverado and GMC Sierra Single Cab trucks, this space-saving powerhouse mounts securely behind your seat and fires forward to deliver hard-hitting, undistorted bass without stealing your legroom.
SB144-210BL
The SPL Boxes SB144-210BL is a custom-fit, dual 10 in underseat downward-firing subwoofer enclosure engineered specifically for 2014–2018 Chevrolet Silverado and GMC Sierra Double Cab trucks.
